AP BIOLOGY

Detailed explanation-1: -The higher the frequency waves oscillate, the higher the pitch of the sound we hear. As you see, sound frequency is determined by the way in which sound waves oscillate whilst travelling to our ears, meaning that they alternate between compressing and stretching the medium, which in most cases is air.

Detailed explanation-2: -The pitch of a sound is directly proportional to the frequency. Pitch increases as the frequency of the vibration increase. The lower the frequency of vibration, the lower is the pitch.

Detailed explanation-3: -A high pitch sound corresponds to a high frequency sound wave and a low pitch sound corresponds to a low frequency sound wave.